Fabric-cutting device



A. L. BERTHELSEN. FABRIC CUTTING DEVICE. APPLICATION FILED APR. 19. 1920.'

Patented Dee. 13, 1921.

2 SHEETS-SHEET l.

A. L. BERTHELSEN.

FABRIC CUTTING, DEVICE. APPLICATION FILED APR. I9, 1920.

1,399,924 Patented Dec. 13, 1921.

2 SHEETS-SHEET 2- UNITED sraprss ANDERS LASSEN BERTHELSEN, OF CHICAGO, ILLINOIS.

y FABRIC-CUTTING DEVICE.

Application filed ap-fn is, 1920. sei-iai No. 374,975.

To all 'whom t may concern.'

Be 1t known that I, ANDERS LAssnN BERTH- nLsEN, a subject of the King of Denmark,

residing at Chicago, in the county of Cook4 and State of Illinois, have invented certain new and useful Improvements in Fabric- Cutting Devices, of which the following is a specification.

The present invention appertains to that type o f fabric cutting device disclosed in my previous Patent No. 1,318,346, granted October 14, 1919,l the-objects of these improvements being in part to simplify the construction without'reducing its eifectiveness, and in part to produce such a construction wherein the operative point of the edge of the cutter is readily controllable in a simple manner.

Other objects and advantages will more fully appear asthe description proceeds, the novel features thereof being pointed out in the appended claims.

For a full understanding of the invention reference is to be had to the following de scription and accompanying drawings, in which:

Figure 1 is a side elevation of a device constructed in accordance with' my present invent-ion;

Fig. 2 is a bottom plan view;

Fig. 3 is a top4 plan view;

Fig. 4 is a view with the side of the body broken away and parts shown in section to show more clearly the details of construction,especially with reference to the mounting of the cutting blade;

Fig. 5 is a longitudinal sectional view on the line 5 5 of Fig. 4;

Fig. 6 is an end elevation;

. Figs. 7 and 8 are sectional views on` the lines 7 7 and 8l-v8, respectively, of Fig. 1;

Fig. 9 is a side elevation of a modified form of my invention; Y l

Fig. 10 isv a vertical longitudinal sectional View thereof;

Fig. 11 is a horizontal sectional view on the line 11-11 of Fig. 10; y

Fig. 12 is a detail view of the' blade holder portion of this modified construction in open position to free the blades; and l Figs. 13 and 14 are sectional views on the lines 13--13 and 14-14 respectively, of Fig.l 9.

Throughout the following detail description and on the several figures of the draw- Specication of Letters Patent.

` forward end of the holder.

full lines-in Figlf4 of the drawings.

,y Patented ings, similar parts are referred to by like reference characters. ',f

Specifically describing the invention and referring to that form of the device disclosed in Figs.vv 1 to 8, 1 designates the body portion thereof which is tubular in form,

in cross section oval-shaped. ln the manufacture of the article this part 1 may either be constructed from a solid tubular piece, or, as may be preferred from two pieces, the edges of which are suitably welded together. Disregarding this phase as immateriahfthe tubular piece is split longitudinally and transversely of its narrow dimension for a distance substantially one-half its length,

placed firmly together so as to `form a blade holder 2. This leavesv the upper portion at the split end arched over the blade'holder with the edges 3" spaced equally from the blade holder and depending slightly Vbelow the plane of the top of the holder; The forward extremity ofthis arched portion is cut shorter than the blade holder and along a curved line extending diagonally of the nec. 13, 1921-.

and at the bottom vthe two sides are then said holder as indicated at 4, the function ofy which part is to provide a clothA guide or guiding means as well as a protector for the blade. This part, however, will-behereinafter'referred to Aas a guiding means or guide.under the designation of the numeral 3. Between the pressed sides of the holder 2 a cutting blade 5 is adapted to be inser-ted and held, the blade being provided preferably with a notch 5 at either end engageable with a protuberance 6 formed by stamping or punching in the metal at the A similar protuberance 7 is' provided at the opposite end of the pressed portion yso as t0 hold the blade with the end notchl engaging with the for-` ward protuberance 6, as clearly shown in Before leaving this portion of the device', it should be noted particularly that the Vconstruction in the manner specified leaves the forward extremity of the pressed Vportion projecting substantially beyond the end ofthe guide 3, thus constituting a support for the cloth as it passes into' the mouth of the guide 3, 'an important feature of construction of the'l device i Upon this body portion'l of the cutter is slidably mounted a split sleeve 8 and herein lies the main featureof construction of my device because this element functions in many ways to control the operation or action of the instrument; As will be observed the sleeve conforms in general to the contour of the tubular member 1, and being ofmaterial preferably possessing g resiliency suilicient tension is maintained to insure that the sleeve will retain its adjustment position yat any point within the range of its adjustlalined with respect to the over-hanging guide 3, prevents the ydisplacement of the blade 5 from between the sides of the holder ends until removed from the body and limits the longitudinal movement of the sleeve in one direction by reason of the cooperation with the shoulder of the part 1 produced by the pressing together of the sides to form the holder 2. The main function for the sleeve, however, is to regulate the severing or cutting point of the edge of the blade and this will be clear from the explanation of the use or operation of the device.

' In the use of the device the cutting operation is accomplished by either a relative movement of the cutter with respect to the cloth, or of the cloth with respect to the cutter, depending upon whether the material is held stationary or the cutter so held during the cutting operation. .The line of cut of the cloth is iirst determined, this being preferably at right angles to the selvage edge of said material which passes over the projecting extremity of the blade holder 2 until it meets with the extremity of the guide 3. The curving or inclined edge 4 first acts to fold the material and then directs the same at an angle to the blade projecting slightly above the holder 2, thus cutting the material as the edges thereof are guided laterallyor outwardly by coming into contact with the pinched portion 10 of the sleeve lying below the guide 3. Obviously then, as the cutting point of the edge of the blade becomes dull from use the sleeve may be moved along the body' 1 from the dotted line position of Fig. 1 toward the full line position, in this way prolonging the serviceability of the bladeto the maximum edge.

extent. It should be understood, of course, that the blade may also be reversed lend for end if desired, or if possessing a double cutting edge the blade may be reversed edge for To reverse 'or displace the blade, it

v 1s only necessary to slide the sleeve off the bodyA and by springing open slightly the Y sides of the holder 2 the blade will fall out..

By pressing the metal of the body together at its end and cutting an opening 11 provision is made for hanging the cutter at a con-v Passing now 'to the modified form of thev device shown in Figs. 9 to 14, it will be observed that this possesses the general features of the construction of the previous form hereinbefore defined.Y In this modification, however the body consists of a sectional blade holder 12 composed of complemental sections 12', 12 pivoted together at their forward extremities as at 13. Provision is made for holding two cutting` blades 111, 14, one of which of course is in inoperative position normally but subject to interchange with the other. By cutting out the material of the holder, a yieldable projection or arm 15, is formed, speaking of the sections ofthe holder as a unit. The holder is pivotally connected to the overhanging guide or protector member 16, the equivalent of the member 3 in the preferred form, the pivot for the parts being designated 17. In closing these parts together the guide comes into contact with lthe projection 15 which resists the full closing action. Upon the holder and guide unit, the sleeve 8a, similar to the sleeve 8,A is slid from the forward end, a sufficient frictional resistance being thus produced lto hold' the sleeve at any adjusted position. To enable an adjusted position to be positively retained l preferably notch the lower edge of the holder 12 as at 18 and turn up a lip 19 at the lower part of the mouth of the sleeve to engage in the notches. By pressing together the forward end of the guide 16 and holder 12 at the points indicated by arrows a', fr, Fig. 9, the lip may be disengaged from the notches and slid along in either direction for the purposes hereinbefore specifically mentioned in reference to the preferred form. The cutting edge of the blade 14. in this form, which is in operative position, may be shifted by moving the sleeve 8in a longitudinal direction as above described with reference to the preferred form.

Then it is necessary to insert a new cutting blade, the sleeve 8a may be entirely removed in a forward direction, thereby releasing the holder and springing Vopen slightly` the sides of said holder whereupon the blade or blades willv fall out. j

Protuberances 20, 20, are lpunched in the sections of the holder 12 so as to coperate with the sides -of the guide 16 to hold the blade centrally with respect to said guide.

The sleeve 8a is pressed together along its lower portion at opposite sides so as to form shoulders :2l which closely grip the blade holder and which shoulders as in the preferred form constitute guiding or gripping means for the cloth in the cutting operation so that the sleeve functions in substantially the saine manner in this modification as inl sald sleeve being adjustable wlth'referen'ce the preferred form mentioned.

Thus the invention is subject to this and such other modifications within the purview of the invention without in any way departing from the spirit thereof and within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A fabric cutting device of the class described, comprising a blade holder, and means movable along the holder to thereby change the point of the blade edge which is operative to effect the cutting action, said means being constructed to guide the severed portions of the material laterally outward with respect to the blade edge.

2. A fabric cutter comprising a blade holder and Va sleeve slidably mounted di-` with a blade holding portion at one end and as a part thereof with cloth guiding means associated with said blade holding portion for preliminarily folding the fabric over the holder and thereafter directing the fabric at an angle against the edge of the blade, and separate means adjustably mounted on the body for directing the edges of the cloth away laterally of the holder.

5. A fabric cutter of the class described comprising a blade holder adapted to receive a blade between its sides, and a sleeve mounted upon said holder and constituting -retainingmeans for preventing displacement of the blade, and controlling the point of cutting action of the edge of said blade.

6. A fabric cutter of the class described comprising a blade holder adapted to receive a blade between its sides, and a sleeve mounted upon said holder and constituting retaining means for preventing displacement of the blade, and controlling the point of cutting action of the edge of said blade,

to the blade in a longitudinal direction.

7. A fabric cutter of the class described comprising a body portion formed with a blade holder and a guide means overhanging said holder and a blade adapted to be mounted therein, and a split sleeve mounted upon the body and conforming to the con-y tour thereof with respect to the blade holder and guiding means, said sleeve preventing f displacement of the blade and constituting guiding means for the fabric.

8. A fabric cutter of the class described comprising a tubular body, said body being split longitudinally from one end andthe sides thereof at the split portion pressed together to form a blade holder and a sleeve mounted upon said body and having a portion thereof pressed together to -gripthe blade holder andl maintain the samev centrally alined with respect to the body during the cutting action.

9. A fabric cutter of the class described,

comprising a tubular body having the sides thereof at one end and along its lower portion pressed together to form a `blade holder, the sides thereof adjacent the blade holderi overhanging the same and constituting a blade protector, and a sleeve mounted upon the body, and operable over the blade protector, said sleeve being pressed together at its lower portion to grip the blade holder, thereby forming cloth guiding shoulders constituting means for limiting movement of the sleeve in one direction.

l0. A fabric cutter comprising an elongated body having separable side members forming a blade holder between which a cutting blade is adapted to be inserted, means on said blade holder with which the blade is engaged to hold it in position between the sides, a protector over-hanging the blade holder and blade, and a sleeve mounted for 

